1 /* Pango 2 * pango-context.h: Rendering contexts 3 * 4 * Copyright (C) 2000 Red Hat Software 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public 17 * License along with this library; if not, write to the 18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 19 * Boston, MA 02111-1307, USA. 20 */ 21 22 #ifndef __PANGO_CONTEXT_H__ 23 #define __PANGO_CONTEXT_H__ 24 25 #include <pango/pango-font.h> 26 #include <pango/pango-fontmap.h> 27 #include <pango/pango-attributes.h> 28 #include <pango/pango-direction.h> 29 30 G_BEGIN_DECLS 31 32 /* Sort of like a GC - application set information about how 33 * to handle scripts 34 */ 35 36 /* PangoContext typedefed in pango-fontmap.h */ 37 typedef struct _PangoContextClass PangoContextClass; 38 39 #define PANGO_TYPE_CONTEXT (pango_context_get_type ()) 40 #define PANGO_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_CONTEXT, PangoContext)) 41 #define PANGO_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_CONTEXT, PangoContextClass)) 42 #define PANGO_IS_CONTEXT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CONTEXT)) 43 #define PANGO_IS_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_CONTEXT)) 44 #define PANGO_CONTEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_CONTEXT, PangoContextClass)) 45 46 47 /* The PangoContext and PangoContextClass structs are private; if you 48 * need to create a subclass of these, file a bug. 49 */ 50 51 PANGO_AVAILABLE_IN_ALL 52 GType pango_context_get_type (void) G_GNUC_CONST; 53 54 PANGO_AVAILABLE_IN_ALL 55 PangoContext *pango_context_new (void); 56 PANGO_AVAILABLE_IN_1_32 57 void pango_context_changed (PangoContext *context); 58 PANGO_AVAILABLE_IN_ALL 59 void pango_context_set_font_map (PangoContext *context, 60 PangoFontMap *font_map); 61 PANGO_AVAILABLE_IN_1_6 62 PangoFontMap *pango_context_get_font_map (PangoContext *context); 63 PANGO_AVAILABLE_IN_1_32 64 guint pango_context_get_serial (PangoContext *context); 65 PANGO_AVAILABLE_IN_ALL 66 void pango_context_list_families (PangoContext *context, 67 PangoFontFamily ***families, 68 int *n_families); 69 PANGO_AVAILABLE_IN_ALL 70 PangoFont * pango_context_load_font (PangoContext *context, 71 const PangoFontDescription *desc); 72 PANGO_AVAILABLE_IN_ALL 73 PangoFontset *pango_context_load_fontset (PangoContext *context, 74 const PangoFontDescription *desc, 75 PangoLanguage *language); 76 77 PANGO_AVAILABLE_IN_ALL 78 PangoFontMetrics *pango_context_get_metrics (PangoContext *context, 79 const PangoFontDescription *desc, 80 PangoLanguage *language); 81 82 PANGO_AVAILABLE_IN_ALL 83 void pango_context_set_font_description (PangoContext *context, 84 const PangoFontDescription *desc); 85 PANGO_AVAILABLE_IN_ALL 86 PangoFontDescription * pango_context_get_font_description (PangoContext *context); 87 PANGO_AVAILABLE_IN_ALL 88 PangoLanguage *pango_context_get_language (PangoContext *context); 89 PANGO_AVAILABLE_IN_ALL 90 void pango_context_set_language (PangoContext *context, 91 PangoLanguage *language); 92 PANGO_AVAILABLE_IN_ALL 93 void pango_context_set_base_dir (PangoContext *context, 94 PangoDirection direction); 95 PANGO_AVAILABLE_IN_ALL 96 PangoDirection pango_context_get_base_dir (PangoContext *context); 97 PANGO_AVAILABLE_IN_1_16 98 void pango_context_set_base_gravity (PangoContext *context, 99 PangoGravity gravity); 100 PANGO_AVAILABLE_IN_1_16 101 PangoGravity pango_context_get_base_gravity (PangoContext *context); 102 PANGO_AVAILABLE_IN_1_16 103 PangoGravity pango_context_get_gravity (PangoContext *context); 104 PANGO_AVAILABLE_IN_1_16 105 void pango_context_set_gravity_hint (PangoContext *context, 106 PangoGravityHint hint); 107 PANGO_AVAILABLE_IN_1_16 108 PangoGravityHint pango_context_get_gravity_hint (PangoContext *context); 109 110 PANGO_AVAILABLE_IN_1_6 111 void pango_context_set_matrix (PangoContext *context, 112 const PangoMatrix *matrix); 113 PANGO_AVAILABLE_IN_1_6 114 const PangoMatrix * pango_context_get_matrix (PangoContext *context); 115 116 PANGO_AVAILABLE_IN_1_44 117 void pango_context_set_round_glyph_positions (PangoContext *context, 118 gboolean round_positions); 119 PANGO_AVAILABLE_IN_1_44 120 gboolean pango_context_get_round_glyph_positions (PangoContext *context); 121 122 PANGO_AVAILABLE_IN_ALL 123 GList *pango_itemize (PangoContext *context, 124 const char *text, 125 int start_index, 126 int length, 127 PangoAttrList *attrs, 128 PangoAttrIterator *cached_iter); 129 PANGO_AVAILABLE_IN_1_4 130 GList *pango_itemize_with_base_dir (PangoContext *context, 131 PangoDirection base_dir, 132 const char *text, 133 int start_index, 134 int length, 135 PangoAttrList *attrs, 136 PangoAttrIterator *cached_iter); 137 138 G_END_DECLS 139 140 #endif /* __PANGO_CONTEXT_H__ */ 141